The Ultimate DOOM

Just started playing this but noticed that the ammo counter does not move. I want to play it with some form of challenge with ammo management. Do I have to set something? Also I started if with a shotgun I believe, is there no pistol?

The ammo counter should work, what source port are you using? are you using any other mods?

You start with a rifle, you can aim down the sights with the secondary fire. It replaces the pistol.

This is because guns with ammo capacities in them (shotgun with 8 shells, rifle with 30 bullets, plasma with 50 rounds, ect) Have the ammo counter on a seperate thing. The ammo count displayed with default hud shows your total count. There is a mod which gives an advanced hud, fixing this however, and the hud looks awsome to boot.

So to put it short, theres your ammo stockpile, and then theres the loaded ammunition. They both get different numbers and only the stockpile number shows up.